diff --git a/scripts/un/sdg/README.md b/scripts/un/sdg/README.md
index f829b4dc84..d2d4f24722 100644
--- a/scripts/un/sdg/README.md
+++ b/scripts/un/sdg/README.md
@@ -2,8 +2,23 @@
 
 This import includes data from the [UN SDG Global Database](https://unstats.un.org/sdgs/dataportal). Data is read from the submodule `sdg-dataset` which is managed by UN Stats. Geography mappings are read from the submodule `sssom-mappings` which is also managed by UN Stats. Please ensure the submodules stay up to date.
 
+## One-time Setup
 
-To generate place mappings:
+Initialize submodules:
+```
+git submodule update --init --remote sdg-dataset
+git submodule update --init --remote sssom-mappings
+```
+
+## Data Refresh 
+
+Update submodules: 
+```
+git submodule update --remote sdg-dataset
+git submodule update --remote sssom-mappings
+```
+
+Generate place mappings:
 ```
 python3 geography.py
 ```
@@ -15,7 +30,7 @@ Produces:
 
 Note that the `place_mappings.csv` is required before running the `process.py` script.
 
-To process data and generate artifacts:
+Process data and generate artifacts:
 ```
 python3 process.py
 ```
@@ -42,7 +57,7 @@ python3 -m unittest discover -v -s ../ -p "*_test.py"
 Notes:
 * We currently drop certain series and variables (refer to `util.py` for the list) which have been identified by UN as potentially containing outliers.
 
-### SDMX
+## SDMX
 
 As reference, we provide an earlier version of the import scripts that utilized the UN API (which uses SDMX) in the `sdmx/` folder. Please note that these scripts may have errors and do not use the most up-to-date schema format, so should only be used as an illustration of the SDMX -> MCF mapping and **should not actually be run**.